Haystacker



vJ. H.coPE. HAYSTAQKER. APPLICATION FILED FEB. 27, |920. l

' Patented Aug. 22,' E922.

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HAYSTACKER.

APPLICATION FILED FEB. 27, 1.920.

Patented Aug. 22;, 1922,

2 SHEETS-SHEET 2.

JOSEPH n. corn, or nnnvnn, coronare, assenoii 'ro 'rnn .wrnnson .iunnurno- 'ronnie oonraivv, or wnvnson, coronario, noonronnrronor COLORADO.

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To all to from t may concern Massei;

Application led February 27, 1920. Serial No. 361,833.

Be it known that LJosnPH Corn, -a citizen of the United States, .residing atthe city and county of Denver and State of Colorado, have invented certain new and useful improvements in l-laystackers; and l do declare the following to be a full, clear, and exa-ct description of the invention, such as will enable others skilled in Vthe art to which it appertains to .make ,andy use` the sametreference being had to the accompanying drawings, and to the characters of reference marked thereon, which forma part of this specification. n E 1 The object of this invention is to'provide an eiiicient and cheaply constructed devicev for the purpose stated. l

Brieiiy, the invention comprises a ground frame provided with upstanding standards to which are pivoted the lifting arms of the stacker, the lifting arms being positioned directly above the longitudinally extending timbers of the ground frime. rllhe lextension arms are slidableupon the lifting arms and are adapt-ed to be extended by means of two-part jointed links. rlhe :forward end of one ofthe link parts on each side of the device is adapted to be pivoted onthe extension arm at any one of a plurality of points, according to the amount of extension desired. The

rearend of the other part of each `link is piv-.

oted to the rear ofthe framework, .and this part extends through astop device which extends upwardly, the lower end thereof being mounted .either onthe pivot for the corresponding lifting arm,\orv on a pivot onthe framework at some pointadjacent the said. lifting arm pivot. Lifting means for elevating the stacker head are provided inthe form 1 of an il-frame, connected with the ground frame, rods connected with-the' upper lend of the A-frame and with the lifting arms, and block and tackle forelevating the same.

In the drawing: l Fig. lis a planv of the invention. j lig. 2 is a side elevation showing the device in lowered position; and

Fig. 3 is a side elevation showing thede I vice extended almost tothe limit of elevation.

The ground vframe comprises longitudinally extending timbers 10 and end bars 12. Atransverse beam 14 rests upon the timbers 10 and the abutting ends oftruss bars 16 restuponthisbcam, the opposite ends of the truss bars bearing upon the tops of the tim.-

a pair of bers Short, v standards Orl-posts 18y are secured, tol the-sides. ofk each. vof the timbers l0-and the adjacent truss ba-rs 16,i

the ,ends 'of the beam 14 projecting through these posts, as indicated in Fig 2. 'At 20 the lifting arms 22are pivotally mounted between the upper-ends of theposts 18, so .that

these arms 22 lie directly above the timbersA lOandl the ,adjacentftruss bars 16. Exten sion armsl 24 are slidably mounted .upon the lifting arms'22 and retained in such relationby, means of suitable Aguides 26.Y Theexten-- sion arms24 are provided with apluralityy r of :holes 28, inany oneof which a pin 30 may bev positioned for the purpose of pivotingthe forward ends of the forwardfsections 32 of the extension'links. The sections 32:,are pivotedat 33 tothe rear sections 34 of the links. Each section 34 has its .upper end in the form-.of a tongue 35, carrying a transversepin 36 to serve as a stop for the adjacent section r32. The lower end of each section 34 is forked. as v:indicated at 38, in

orderA to straddle the truss bar .16 therebe.

neat-h, to which it is pivoted at 40. Each section 34 'carries a transverse'pin .42,- as indicated in li`1g-2, for the purpose of holding in elevated position the arms 44 of a stop elenient,\vlnch carries at its upper end 'a stop block 46, against whichthe section 34 bearsl when the stacker is in'v elevated position.v The .lower .ends ofthe arms 444 may be pivoted on the pivot 20, which is Ialsothe pivot point for the lifting arms 22.*. The rarms 44 are provided with a plurality lof apertures 48v for receiving a'removablepin 50, Vwhich is This i An ,ft-frame 60 is pivoted at 62 to the tim- `here 10 and has connectedlwith its upper end a pair of lifting` rods 64, which are connected with the forward endsof the ylifting arms` 22 as indicated at 66. The upper end. ofthe frame 60 also carries a pulley 68, and an eye T0. The rear endof the framework ycarries pulleys 72,and over these partsa cable 74 is ,threaded for operating the frame 60 and the lifting rods 64. Each of the lifting arms 22 has a spring yconnected thereto. at' 82, the opposite end of the yspring being` provided with a yhook 84, which yengages a crossbar A86,` adaptedto slide inslots 8,8v in the npperrlsdesofthe lifting'jarms 22;( Blocks 90,` secured l' to 'the inner sides 4of the' inner varms l of theli'nk'secf gage with the rear 'edge of the bar 86," in orderto advancesaid bar 36in the slots 88 andtensinthefsprings SO-When the 'arms' 24 are extended.

l In the operation ofthe device, the stop aImS 144e bear s npon thetransversee :pins 42 .of

the sectionsvfl' .in yjord'ei.' to retainV said arms in.fithepositiony shown..v The 'forward ends of thezsections @32am-'set .in oneof I the holes i PI'IS 5.OfareV-setaccordingly:l`r l.

As the lifting arms. 22 :arevr elevated through' thefflnediiim otthei Alti-ame 60 and the rod 64,:the f sectionszll move rearward` through 2athe'Imediinn of. the .sections '32 :untill said sectippen ends' of Athe stopgarms r 44. As. elevation? fcontinues, the link i `sections 'cause-4 thezextension. arms'. v24E tof` ivslide 'outwardly y25'vupoI'1-fthe liftin'gpfarms'22, sineemovement of* thevsections'ret isprevented bvfthe blocks 16:

Duringnthisfmovement the blocks 90.' onl the link sections 32-"com'einto .engagement with the-transverse'bar 86. and during-.the Llatter xpart oi'Wthe-f. extension of the arms 24 this bari 861v places: the springsSO Iunder! tensionsof, ithat When therr stacker head I has passed over the dead centerg atpivot 420, thesprings 1' 80.. are@ under' considerable tension, which 35E.

therblocks-QO v"to the linksf2,l .and Ethereby to the-:extension'farms24kfthrough the pins 30.

Thilsg: after the vload hfas been'throivn fromy thefstaekerhead Qanddraft onth'e cable 74 ist. releasethlthey springsl ,8O Willir` cause the arms 24faii'd head=25 to' be drawn. back over the'fdea-d' @enter at .20, .Wherenponthe weiolit4 of fthefhead' will causei the same. to desoend `The transverse. pins 36in thenpper ends serve'as'prstops'f for the link" sections 32 "when theI stacker head isY at i'ts uppermost and rearniost position; Byfth'is 44niean'sdozlbling baekl of they link sections 32` fand '34 about theI .pivotpoints 33 is prevented..` f l vltwvillfbe'notedparticularly 'that the construction heredisclosedwvith reference to the li11le1s'ectionsr32landll andthe stop' arms Liet gether, one :ot` whichy is pivoted tothe framev andthe :oth erf is fpivoted" to the `eXtension arm.r` 6i5fy 2.In a stacker; aimainframe,.a-slidafble "tions 32 project down into position to-v enf.

28,?,tovfgive'r the extension' required; .and the kto fthe1 extension arm.

offthestongnes 35 'ofv the"link"-sections 34,"

` both i'orWard and rearward movement `of that link member Which is pivotedlto the tri-line...v J i In a stacker, a main frame, avlifting arm, an extension 'arm` sli'dable onsaid liftingarmymeansrto lift saidarms and-head,

and means zto slide said extension .armon the lifting; arm comprising a jointed link having two members pivoted together, .one of 'which is.v pivote'd.Sto1the-main frame and they other arm, an extension .arm slidable lon said .1i-ft-l ingffarmg means.` .to lift 1 said .arms and head and'means to slidefsaidl 'extension arm on the lifting.- arm: comprising, a `jointedllin-k havtvvo members pivotedtogether, one of oth'err'to the yextension arm, and means to "limitbotha forward and rearward movement of that link member which is piv-ote'd tof the frame.; v

5.'.Ihl a.fstaeker,a"main frame, a lifting arm', an extension armfislidable on said lifting? armi, means to lift' said arms and head and means to slide' said extensionarm on the lifterV arm. comprising, ajointed link havingtivo members pivoted together, one ofV Wh'iclrispivoted "to the main frame and the other to v1the extensionV arm, and a spring' pull-backiadapted to be placed -under tension as -said-feXtension arm approaches its limit of extension. j l

65 In a stackenamain frame, a lil-'ting arn-i, an eXtensiona-rm sli'dable on said liftinf'glarm, means' to lift said arm and, head, a` jointedI-li-nkcomprising two members pivetedftegethei, one of which isvpivotedtothe; 11"()I main frame; andthe other to theI extension arm, alspring pull-back adapted to be placed under tension as said `extension arm apwhich is pivoted to the main frame and vthe 'f proache'sitslimit oli'l extension', said pull# ba'ck'comprising means slidable on said lift'- ingfarm, a `springconnecting said means with said"liftingfarm,v and "fa device on vsaid link to engage said means `*to extend the same.

`7. .In a stacker, a-main frame, fa slidable `extension thereon, av stacker .head on the arm, means'to lift the arms andhead, and. means 'forfextending said i arm as'v itf is llitted comprising' 'a' jointed vlink vpivoted to thearm and tothe frame. i

Sflfn al stacken'fa main trame, a lifting" arm, anexten'sion arm slidable onsaid lifting-- arm,'a stackerjhead on said extension arm, means tolift saidarms andhead, and meansfor sliding thefextension arm kon the' liftinga'rm comprising a jointed link' pivoted-to the extension armand to the frame".

9. In a stacker, a main frame, an exten sion arm having a 'stacker head thereon, means to lift said arm and head, a jointed link for extending said arm as it is lifted comprising two-members pivoted together, one member being pivoted to the main frame and the other to the extension arm, and means to limit the rearward movement of said link members.

10. In a stacker, a lmain frame.. an eX- tension arm having a stacker head thereon, means to lift said arm and head, a jointed link for extending said arm as it is lifted comprising two members pivoted together, one member being pivoted to the main frame and the other to` the extension arm, means to limit the rearward movement of said link members, and a guide for said link.

11. In a stacker, a main frame, an eX- tension arm having a stacker head thereon,

means to lift said arm and head, a jointed link comprising two members pivoted `together, one member being pivoted to the main frame and the other to the extension arm, and means t0 limit the rearward movement of said link members, said limiting means comprising a guide and a stop on said guide for engagement by the link.

12. In a stacker, a main frame, a lifting arm pivoted to the frame,` an extension arm slidable on said lifting arm, a link member pivoted at the rear of the pivot` of said lifting arm, a second link member pivoted to the first mentioned member and pivoted also to said extension arm, a stacker head on said extension arm, `means to lift said arms and head, and a spring pull-back adapted to be placed under tension as said extension arm approaches its limit of eX- tension.l

13. In a stacker, a main frame, a lifting arm pivoted to the frame, an extension arm slidable on said lifting arm, a link member pivoted in the rear of the pivot of vsaid lifting arm, a second link member pivoted to the first mentioned link member, and pivoted also to said extension arm, a stacker head on said extension arm, means to lift said arms and head, means to limit both forward and rearward movement of that link member which is pivoted to the frame, and a spring pull-back adapted to be placed under tension as said extension arm approaches its limit of extension..

' 14. In a stacker, a main frame, a lifting arm pivoted on the frame, an extension arm slidable on the lifting arm, a link member pivoted on lthe frame, a second link member pivoted to the first mentioned member and pivoted' also `to said extension arm, a stackery head on said extension arm, and means to lift said arms and head, a stop member for said link, the' rnpper portion of the first mentioned link member being pivot point of the second member on the' extension arm being adapted to lie forward of the center line of said first member when in said position toV prevent collapse of said members under load.

15. In a stacker, a main frame, a lifting arm pivoted on the frame, an extension arm slidable on the lifting arm,a link member pivoted on the frame, a second link member pivoted to the first mentioned lmember and pivoted also to said extension arm, a stacker head on said extension arm, and means to lift said arms and head, the upper part of the first mentioned link member being adapted to be retained in position when said stacker is elevated to prevent collapse of said link members under load.

16. In a stacker, a main frame, a lifting arm pivoted on the frame, an extension arm slidable on the lifting' arm, a linkmember pivoted on the frame, a secondl link member pivoted to the first mentioned member vand pivoted also to said extension arm, a'stacker head on said extension arm, means to lift said arms and head, and a stop t0 be engaged by the upper part of the first mentioned link member Ato retain the latter in position when said stacker is elevated to prevent collapse of said link members under load.

17. In a stacker, a main frame, a liftingv arm pivoted thereto, an extension arm slid- `able on the lifting arm, a link member pivoted on the frame, a second link member pivoted to the first mentioned member and pivoted also to said extension arm, a stacker headfon said extension arm, means vto lift said arms and head, a stop connected' with.

the frame and adapted to be engaged 'by the upper part of the first mentioned link member to limit the movement thereof.

18. In a stacker, a main frame, comprising a post, a longitudinally extending timber,

spaced members connected with the upper portion of said post and with said timber, braces on the sides of the timber, a lifting arm, an` extension arm slidable on saidlift` at one end to said extension arm and having l the other end extending between and guided by said spaced members.

20. In -a stacker, a main frame', spaced guides connected with said frame, a lifting arme an-vextensionglarm slidable thereon, a linkmemher connected at one end toi-said extension arm, and a second link member connected at one end to said frame and'` at :its

5,; otheriend to the other end of the first fnamed i linkmember, said second member extending between and guided by said spaced guides. i

2l.4 In a stacker, a lifting arm, an extension; arm?, a ,two-part jointedlink to` extend H;theextensionarm, anda stop to beengaged byv one partof .said link to limit rearward motion.- v i 22. InA a stacker, a` lifting arm, an'l extension arm, a jointed linkI to extend y,the exten.-y

;l sion karm, anda stop to oe-engaged by said link to limit rearward motion, oneend of the linkbeing piivoted toA the extension arm With the frame and `*with the extension arm.`

24. Ina stacker, a frame including a ground timber, apostsecured tat-the side of said timber, a lifting arm lying over said 30113timber-.and'pivoted to said post, jan exten-` sionfiarmslidable on said lifting arm, means to lift said arms, and means to extend said extension. arm While the arms are being lifted, said extending` meanscompifising a twopart jointed link connectedwithi the extension` a-rm.

25. In af staokeiga` frame including a.

a groundtimber, apost secured atv-the side ofsaidftimber, avlifting arm lying directly 40e above said timber andpivoted to said post,

an, .extension larm slidable .on said lifting arm, means to lift said arms, and means to..

extend saidy extension arm While the arms are being-lifted, saidfextendingmeans com- 4 5g .prisng a jointed link having one part pivoted yto the yextension, arm and another p art pivoted to the frame. i

26.5,I'n Va stacker, a frame including a ground vtimber, apostsecured at the side of 5.0;said timber, a` liftingy arm lying directly abovesaidtimber and pivoted to said post, an extension arm-slidableionsaid lifting arm,means to lift said arms, means to extend saidextension-arm While the arms are g being lifted, .said extending means comprising ointed link having` one part pivoted to the'extension larm and another part pivoted toftherframe, and a stop for limitingthe rearward movement of said link.

27; In a stackerma` liftingy arm, an extension arm, and means comprising Va two-part jointed-linkto extend the extension arm.

28. In a stacker, a lifting, arm, an extensionaim, and means comprising a two-part joii'ited` link to.v extend-'thefextension arm, said jointed link beingpivotally'- mounted,`

by one parti. ofsaid link to g limit motion.

30;. Inl a stacker, afli-fting arm, an extension airm,a tivo-part jointed linkto extend the extension arm, and a stopto be engaged by one part of said link tolimitmotion,

said,` jointed link1 being pivotally mounted.` 31. In a staekeiya main frame, a slidable extension arm, a stacker head1 ,on said arm, means to lift said armand head, and a jointed link to extend the arm comprising:

tivo-members pivoted together.

32. In.y a stacker, a main-frame, a slidable extension arm,,a, stacker headonvsaid arm,

means to lift said arm and head, and af.

jointed linlnto extend thearm comprising tivo members pivoted'together, said jointed,

link beingpivotally mounted.v

33. In a, stacker, amain frame, a slidable extension `arin, a stacker head 4 on said arm,`

means to lift said-arm` and-head,rand a jointed link ComprisingtWo members plv.- otedvtogether, one of said members being adapted `tobe pivotally connected with saidv extension arm Aand in fixed relation thereto, means being provided fory providing said ftixed pivotal connection at various points as desired .to .furnish various adjustments fo vary-ingextensions of said head. 34.* ln aystackei, a main frame, a slidable extension on a stacker head on said arm, means to lift said arm 4and headfa jointed link comprising two members pivoted t0- vgether, one of said members being connected with said extension arm, and a stop adapted to be engaged by the other member of said link to limit motion thereof.

35; rIn a stackeigfamain frame,` a slidable extensionarm, a stacker head on said arm,

means to lift said arm andliead, anda jointed link comprising twovinemberslpivoted together, one of said members being coniiectedivith, theiextension arm and bodily movable Withxrespectto said frame.-

36. A stacker, comprising in combination, a ground timber,a pivoted lifting armlying' directly above said timber, apair of spaced upwardly projecting post members provided with a pivot pin neartheir tops for c0- operatingtwith the lifting arm, an-extension arm slidable on said lifting arm, and means comprising a two part jointed link for sliding said extension arm on the lifting arm as thelatte'r is moved about its pivot.

37.. Inastacker, a frame, a backstop,ia tWo-partextension link one part of which is adapted to engage said stop, a lifting arm with which the. other part of the link is conneeted, said arm being pivoted to thel frame forwardxof the stop.

38. ln a stacker, a frame, a backstop, a two part extension link one part of which is adapted to engage said stop, a lifting arm with which the other part of the link is connected, said arm being pivoted to the frame forward of the stop, whereby said link when engaged with said stop constitutes a brace for the elevated portions.

39. ln a stacker, a main frame having a ground timber, a lifting arm thereon, an eX- tension arm on the lifting arm, and an inclined link connected with the extension arm, the rear end of the lifting arm being pivoted on the frame at a point elevated from the f ground timbei1 so as to cause the lifting arm to incline downward as it extends forward, whereby the link is nearer in line' with the lifting arm.

40. In a stacker, a main frame having substantially parallel sides, a lifting frame having parallel arms on said frame, a pair of spaced braces secured to each of said fra-me sides, the ends of the lifting arms lving over the sides of the frame and pivoted between said braces.

4J.. Inv a stacker, a lifting arm, an extension arm7 a two-part jointed link to extend the extension arm, a stop to be enga-ged by one part of said link to limit rearward movement thereof, and means at said joint to limit swinging of the other part about the joint to prevent doubling back at the joint.

42. ln a stacker, a frame, a lifting arm7 an extension arm, a two-part jointed link to extend the extension arm, a stop to be engaged by one part of the link to limit rearward movement thereof, one part of the link having a portion extending beyond said joint7 and means on said extending portion to engage the other part of the link and prevent doubling back at said joint. y

In testimony whereof I affix my signature.

JOSEPH H. COPE. 

